Ottawa County has joined Allegan County in a lake effect snow advisory, according to the National Weather Service in Grand Rapids.

The advisory starts at 1 a.m. Thursday morning and lasts through 7 p.m.

Expect 3-5 inches of new snow with snowfall rates of up to 1 inch an hour Thursday morning.

Roads will become snow covered and slippery and visibility will be reduced.

Muskegon and Van Buren counties are also under the lake effect snow advisory.

Kent County including Grand Rapids is under a winter weather advisory from 1 a.m. to 7 p.m. Thursday as well.

Allegan County was under a snow advisory earlier this morning, but it was canceled about 11:45 a.m. as snow showers diminished. Those snow showers did pick up again earlier this evening, though, covering areas including Saugatuck and Douglas with fresh snow, making roads slippery and decreasing visibility.